Blue-flame gas-burner.



'llNlflfED TAE@ lltAllllhl ISRAEL H. CAISTER, OF LOS ANGELES,CALIFORNIA.

BLUE-FLAME GAS-BURNER.

Application filed August 111, 1916.

To all 'whom it may concern:

Be it known that 1, ISRAEL H. CAIs'rnR, a citizen of the United States,residing at Los Angeles, in the county of Los Angeles and State ofCalifornia, have invented new and useful Improvements in Blue-Flame Gas-Burners, of which the following is a specification.

llfhis invention relates to a gas burner and particularly pertains to aheater burner of the blue lia-me type.

It is an object of this invention to provide a gas burner which willgenerate a maximum amount of heat and will cause the gas to burn with aclear blue flame.

Another object is to provide means within the burner for insuring thatthe gaseous fuel consumed therein will be properly and adequatelysupplied with air without restriction and will thereby allow the gas todraw its oxygen automatically as needed to cause complete combustionwithin the burner.

Another object is to provide means for heating and superheating the fuelprior to combustion and thereby producing a homogeneous mixture of airand the gaseous fuel.

Another object is to provide means for retarding the passage of the gasfrom the burner and thereby insuring that it is thoroughly heated to ahigh temperature before ignition.

Another object is to so construct the burner that the air and gasfiowing therethrough will be required to travel a sutilcient distanceand through an obstructing chamber prior to being ignited and will thusbe thoroughly and homogeneously mixed.

Another obj ect is to provide a valve operating means for limiting themaximum of gas which may' flow through the burner and other valve meansfor regulating the intensity of the Haine within this limit.

It is a further object to provide a gas burner which is simple in itsconstruction, may readily be repaired or dismantled, and which will whenoperating generate a clear blue flame of intense heat without the pro-`150 lduction of objectional fumes.

Specification of Letters Patent.

Patented Aug.. 28, 1931*?.

serial No. 114,764.

Other objects will appear hereinafter.

The invention is illustrated, by way of example, in the accompanyingdrawings in which:

Figure 1 is a view in perspective with parts broken away and other partsremoved to show the construction and arrangement of the burner.

Fig. 2 is a view in vertical section taken through the burner on thecenter line of the inlet pipes and shows parts broken away to furtherillustrate the valve control.

Referring more particularly to the drawings, 10 indicates a cylindricalhousing which is closed at its lower end by a bottom wall 11. Thehousing is formed with a lower inside bore 12 and an u per bore 13 ofincreased diameter thus producing an annular shoulder 14 upon which theprimary grate 15 is adapted to rest. The grate 15 is circular' andformed with a series of perforations 16 throughout its surface, and hasa cylindrical fuel intake manifold 17 formed integral with it andextending across it. One end of the manifold 17 is in communication withan opening 18 formed through the grate 15 and leading to the chamberbeneath the grate. The other end of the manifold extends outwardly* anddirectly connects with an inlet opening 19 formed through the wall ofthe housing 10. The upper end of the housing 10 is formed with anannular shoulder 20 which supports a burner grate 22. A grate 21 isprovided having' a series of perforations 23 through it and of a sizesimilar to the perforation 16 in the lower grate, the space 'interveningbetween the two grates being filled with clay lumps 24 or other suitableporous material, or non-combustible particles through which the gas maypass. The burner grate 22 is formed with a series of radial lugs 25which fit within receiving slots 26 disposed around a flange 27 which isa part of the housing 10. This grate is convexed and is formed with aseries of perforations 23 which are uniformly distributed over itssurface and which are of diameters considerably smaller than thediameters of perforations Q3.

The inlet passage 19 is internally threaded at its outer end to receivea reducing bushing 28 within which a connectingplug 29 is mounted. Thisconnecting plug is en- ,5 gaged by the threaded en d of a valve, whichis adapted to communicate therethrough and to a gas supply pipe 31through which the gas passes. The gas supply pipe 31 is of considerablelength and extends within the air supply `pipe 17 to a point adjacentthe opening 18 where it is terminated: rlhe terminating end of the gassupply pipe 31 is fittedwith a .needle valve 32 which is suitablyscrewed in place overthe, end and thereafter covered by an L adjustingcap 33 whichhas a Vconical opening 34 in its end adapted toregister withthe needle 35. A seriesof perforations 3G are forinedaround 4 the needleand allow gas topasst from the gas supply pipe through the Ac )pening3ft and-,to the burner, where it mixes lwith air Lpassing..through ,airinlet openings 37. to I the passageway 19` and the gas supply 17.j -1 .y1': nbperatioii the valve cap 33 isfirst adrjustedwto regulate thevolume of gas which may ,flow through ythe burner. i After thislopg-mation hasbeeudone the valve may ,be opened bythe hand wheel 3 8and allow 1gas to pass through a lsupply .pipe 39 to the ygas supply[pipe31 and around the needle valve to the opening 1 8 fOrnied throughthe grate,15. Simultaneous with the inflow of gas air will be drawnthrough theV openings 37 and ivillmix with the gas in the chamber 40after which the gas and air willpass through the opening 1S and.then,through fopeningsi 16 and into the space between the `,lower grate15 and the intermediate grate 2 1. wallhlcin this space it will beobstructed by the clay lumps or other suitableporous Inaterial ,and thiswill produce the well known homogeneous, combination between the air andgas. This action willl be increased `as Akthe clay lumps absorb heatduring` the course of combustion and the gaseous fuel which `willpassgthrough the plate :21 Vwill bein a vstate of perfect mixture. Whenthe gas passes through the plate Q1 it is entrapped within the 5e spacebetween plate 21 and the burner grate ,22 dueto the fact that theopenings 2S through i the :grate 22 aresinaller in diameter than theopenings 23 in lthelinterm'ediate grate 21. L'lhis varrangement of theperforations inl sures-that the flow of, gas wi-llbe retarded fand .willpermitit to besuperheated before passing,` through the {burner grate 22where @it is ignited. lh'en thcfgas is ignited it will burn `with aclear blue VHaine having, an intense heat and will produce such aperfect .nombustion that objectional fumes cannot be detected by personsin the room with the burner.

I claim:

1. A gas burner, comprising, a housing, a burner grate thereover, meansfor conveying gas and air within the lower part of the housing, a heatchamber within said housing and through ,which the. gas and air mustpass, non-inflammable particles within said chamberadapted to combinethe gas and 'air in a homogeneous manner, a superheating chamber abovesaid heating chamber, 2a nd ineai i s 1ywhereby the gas flowing from theheat chamber will be retarded within the superheating chambeiyl u i 2-.,Aie'es bufnelionaprsiea.aeylindrical housing, a ,g a s inlet chamberformed at. Athe ,hettolnef ,Said bowing, ses and air Supply pipe adaptedto communicate with` said inlet @lambert a heat chamber .disposed above.the inlet Chamber and .in Qommllnatenf,therewith, non-inflammableelements withinsaid .flue-t chamber-,t0 absorb, heat and` Produce ahomogeneous gaseous fuel `fromthe and gas delivered thereto, asuperheating vchamber disposed `thereabove andA in communicationtherewith, and, means whereby theL gas- ;eeuS fue'passng ,from the. heatchamber will be retarded withiny the superheating chamber-,primato itscombustion.

l3. A gas burner, comprising, a, cylindrical housinghan inlet openingthroughthe side wall thereof, an Lintake pipe connecting therewith andextending inwardly therefrom, nan initial mixingchamber in c0111-yinunication with said `intake pipe, a gas `supply pipe extendiiigwithin said intakewpipe. .an adjustment, valve over the end thereof, aservice valve controlling the supply of gas thereto, aE perforatedpartition wall disposed v,aboveusaid Amixing chamber, reclay lumpspositioned over. the partitionuvall, .an .nterinediate wallabolvesaidlumps, aburner grate, positioned over 1said intermedi ate wall,

Vand meanswherebythe gaseous fuel may pass through the intermediatewallrandbe retarded prior to passing outwardlyfthrough theburner.g"rrate. i i

-A gas burnercomprismg .a vcylindrical housing, a lfuel inletiopeningthrouglrthe V,Side lwall thereof,l a fuel intake pipe .extendingintosaid opening,l an vinitial mixing chamber surrounding said pipe, airsupply openings. in lcommunication with saidv mixing chamber, anadjustable valve nozzlemounted upon` the inner lend of the intake pipeand within the 4initialmixing chamber, a service valve controlling'thesupply fof fuel thereto, a mixing: ychamber formed in the bottoml of thecylindrical housing and adaptedto :be supplied `with fuel and air,ahorizon-` tally'disposed `perforated partition wall l positioned over.said mixing chambendire clav lumps supported by said Vpartition walland' uniformly distributed thereover in a inaniio 1,238,632 ggg ner toobstruct the fuel passing upwardly through the perforations, a secondpartition Wall disposed over the lumps of re clay and formed withperforatons similar in size to those through the lower partition Wall,and a burner grate of oonVeXed shape mounted over said second partitionWall and tted with perforations of reduced diameter whereby the burningfuel passing from the interior of the housing will he retarded in i; itsmovement and more thoroughly ignited.

In testimony whereof I have signed my name to this specification.

ISRAEL I-I. GAISTER.

Copies of this patent may be obtained for ve cents each, by addressingthe Commissioner of Patents, Washington, D. C.

